Safety risk level assessment method, device and equipment for retaining wall slope and storage medium

Abstract

The invention discloses a safety risk level assessment method, device and equipment for a retaining wall slope and a storage medium, and relates to the technical field of data processing.The safety risk level assessment method for the retaining wall slope comprises the steps that whether an unstable fatal factor exists in the retaining wall slope or not is determined based on slope characteristics of the retaining wall slope; when the unstable fatal factor exists, a preset value serves as a slope instability index of the retaining wall slope; when the unstable fatal factor does not exist, determining a slope instability index based on the slope characteristics of the retaining wall slope; determining a slope disaster hazard index of the retaining wall slope; and determining the safety risk level of the retaining wall slope based on the slope instability index and the slope disaster hazard index. The slope instability index and the slope disastrous index in the retaining wall slope are determined, so that comprehensive evaluation of the retaining wall slope is realized, and the accuracy of safety level risk evaluation is improved.

Description

Technical Field

[0001] The present application relates to the field of data processing technology, and in particular to a method, device, equipment and storage medium for assessing the safety risk level of a retaining wall slope. Background Art

[0002] Slopes are an important issue in geological disasters. Their instability may lead to disasters such as landslides and collapses, which can cause serious harm to humans and the environment. Therefore, assessing slope risks is of great significance for protecting people's lives and property and maintaining the ecological environment.

[0003] At present, many retaining wall slope safety risk assessment methods still use a single safety factor as the evaluation criterion. However, this method is too simplified and cannot fully reflect the complexity and uncertainty of slope stability. Summary of the invention

[0004] The main purpose of this application is to provide a retaining wall slope safety risk level assessment method, device, equipment and storage medium, aiming to solve the technical problem that the existing retaining wall slope safety risk assessment method cannot reflect the complexity and uncertainty of retaining wall slope stability.

[0005] To achieve the above objectives, the present application proposes a method for assessing the safety risk level of a retaining wall slope, the method comprising:

[0006] Determining whether there is an unstable fatal factor in the retaining wall slope based on the slope characteristics of the retaining wall slope;

[0007] When the instability fatal factor exists, a preset value is used as the slope instability index of the retaining wall slope;

[0008] When the instability fatal factor does not exist, determining a slope instability index based on the slope characteristics of the retaining wall slope;

[0009] Determining the slope hazard hazard index of the retaining wall slope;

[0010] The safety risk level of the retaining wall slope is determined based on the slope instability index and the slope disaster hazard index.

[0011] In one embodiment, the step of determining the slope instability index based on the slope characteristics of the retaining wall slope includes:

[0012] Determining geometric features of the retaining wall slope;

[0013] Determining the slope deformation and failure characteristics of the retaining wall slope based on the slope deformation degree of the retaining wall slope;

[0014] Obtaining the slope failure history and slope surface protection and drainage characteristics of the retaining wall slope;

[0015] Determining the slope seepage characteristics of the retaining wall slope and the retaining wall type characteristics;

[0016] Obtaining the bottom angle of the retaining wall slope;

[0017] The slope instability index of the retaining wall slope is determined based on the geometric features, the slope deformation and failure features, the slope failure history, the slope surface protection and drainage features, the leakage features, the retaining wall type features and the slope bottom angle.

[0018] In one embodiment, the step of determining the geometric features of the retaining wall slope comprises:

[0019] Obtain geometric indicators of retaining wall slope;

[0020] Determine the effective height of the retaining wall slope based on the geometric index;

[0021] Determining the height-to-thickness ratio of the retaining wall slope based on the effective height of the slope and the width of the retaining wall foundation;

[0022] The geometric features of the retaining wall slope are determined based on the height-to-thickness ratio.

[0023] In one embodiment, the step of determining the slope deformation failure characteristics of the retaining wall slope based on the slope deformation degree of the retaining wall slope comprises:

[0024] Obtaining deformation and damage signs of the retaining wall slope;

[0025] Determining the slope deformation degree of the retaining wall slope based on the deformation and damage signs;

[0026] The slope deformation and failure characteristics of the retaining wall slope are determined based on the slope deformation degree.

[0027] In one embodiment, the step of determining the slope hazard hazard index of the retaining wall slope includes:

[0028] Determine the facility score of the top of the retaining wall slope based on the type of infrastructure at the top of the retaining wall slope, the characteristic height of the slope, and the distance between the facility and the top of the slope;

[0029] Determine the foot facility score of the retaining wall slope based on the foot infrastructure type of the retaining wall slope, the characteristic height of the slope, the distance between the facility and the foot of the slope, and the topographic characteristics of the slope;

[0030] Determine the slope hazard-bearing body grade score of the retaining wall slope and the degree of hazard after the retaining wall slope becomes unstable;

[0031] determining a slope affected population score for the retaining wall slope;

[0032] The slope hazard hazard index of the retaining wall slope is determined based on the slope top facility score, the slope foot facility score, the slope disaster-bearing body grade score, the hazard degree and the slope disaster-affected population score.

[0033] In one embodiment, the step of determining the slope affected population score of the retaining wall slope comprises:

[0034] Obtaining a preset disaster-affected range of the retaining wall slope;

[0035] Dividing the preset disaster-affected area into a plurality of disaster-affected area intervals;

[0036] The score of the slope affected population of the retaining wall slope is determined according to the number of households within each disaster-affected range.

[0037] In addition, to achieve the above-mentioned purpose, the present application also proposes a device for assessing the safety risk level of a retaining wall slope, the device comprising:

[0038] A judgment module, used for determining whether there is an unstable fatal factor in the retaining wall slope based on the slope characteristics of the retaining wall slope;

[0039] A stability evaluation module, for taking a preset value as a slope instability index of the retaining wall slope when the instability fatal factor exists;

[0040] The stability evaluation module is further used to determine the slope instability index based on the slope characteristics of the retaining wall slope when the instability fatal factor does not exist;

[0041] A hazard management module, for determining a slope hazard hazard index of the retaining wall slope;

[0042] A grade assessment module is used to determine the safety risk grade of the retaining wall slope based on the slope instability index and the slope disaster hazard index.

[0043] In addition, to achieve the above-mentioned purpose, the present application also proposes a device for assessing the safety risk level of a retaining wall slope, the device comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being configured to implement the steps of the method for assessing the safety risk level of a retaining wall slope as described above.

[0044] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by the processor, the steps of the method for assessing the safety risk level of the retaining wall slope as described above are implemented.

[0045] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, it implements the steps of the method for assessing the safety risk level of a retaining wall slope as described above.

[0046] One or more technical solutions proposed in this application have at least the following technical effects:

[0047] The present application determines whether there is an unstable fatal factor in the retaining wall slope based on the slope characteristics of the retaining wall slope; when there is an unstable fatal factor, a preset value is used as the slope instability index of the retaining wall slope; when there is no unstable fatal factor, the slope instability index is determined based on the slope characteristics of the retaining wall slope; the slope disaster hazard index of the retaining wall slope is determined; and the safety risk level of the retaining wall slope is determined based on the slope instability index and the slope disaster hazard index. Since the slope instability index and the slope hazard index in the retaining wall slope are determined, a comprehensive assessment of the retaining wall slope is achieved, thereby improving the accuracy of the safety level risk assessment. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0049] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0050] Figure 1 A schematic diagram of a process flow provided for the first embodiment of the method for assessing the safety risk level of a retaining wall slope of the present application;

[0051] Figure 2 This is a schematic diagram of the overall process in one implementation of the safety risk level assessment method for retaining wall slopes in this application;

[0052] Figure 3 A schematic diagram of a flow chart provided for the second embodiment of the method for assessing the safety risk level of a retaining wall slope of the present application;

[0053] Figure 4 A schematic diagram of the overall process of retaining wall slope safety risk assessment provided in one implementation of the retaining wall slope safety risk level assessment method of the present application;

[0054] Figure 5 A schematic diagram of a flow chart provided for the third embodiment of the method for assessing the safety risk level of a retaining wall slope of the present application;

[0055] Figure 6 This is a schematic diagram of the module structure of the safety risk level assessment device for retaining wall slopes according to an embodiment of the present application;

[0056] Figure 7 Schematic diagram of the equipment structure of the hardware operating environment involved in the method for assessing the safety risk level of a retaining wall slope in an embodiment of the present application.

[0057] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0058] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0059] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0060] The main solutions of the embodiments of the present application are: determining whether there is an unstable fatal factor in the retaining wall slope based on the slope characteristics of the retaining wall slope; when there is an unstable fatal factor, using a preset value as the slope instability index of the retaining wall slope; when there is no unstable fatal factor, determining the slope instability index based on the slope characteristics of the retaining wall slope; determining the slope disaster hazard index of the retaining wall slope; determining the safety risk level of the retaining wall slope based on the slope instability index and the slope disaster hazard index.

[0061] At present, remote sensing technology and ground monitoring technology are usually used to identify various potential risks that may exist in slopes, such as unstable geological structures, natural factors such as rainfall, and human factors such as land development and engineering construction. The risk level of the slope stability of the retaining wall is quantitatively analyzed through the above potential risks, and the risk assessment results are determined to determine the priority and urgency of governance, and then the corresponding governance plan is formulated, including engineering governance measures (such as reinforcement, drainage, etc.) and non-engineering governance measures (such as early warning systems, emergency plans, etc.).

[0062] However, at present, a single safety factor is usually used as the evaluation criterion in the risk assessment of retaining wall slopes, without considering the uncertainty, randomness and interaction of multiple factors. This may lead to problems in the control plan during long-term use and cannot be discovered and solved in time.

[0063] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a computer, a server, etc., or an electronic device, a virtual device, etc. that can realize the above functions. The following takes the safety risk level assessment device for retaining wall slope (hereinafter referred to as the assessment device) as an example to illustrate this embodiment and the following embodiments.

[0064] Based on this, the embodiment of the present application provides a method for assessing the safety risk level of a retaining wall slope. Figure 1 and Figure 2 , Figure 1 This is a flow chart of the first embodiment of the method for assessing the safety risk level of a retaining wall slope of the present application. Figure 2 This is a schematic diagram of the overall process of one implementation of the method for assessing the safety risk level of retaining wall slopes in this application.

[0065] In this embodiment, the safety risk level assessment method of the retaining wall slope includes steps S10 to S50:

[0066] Step S10: determining whether there is an unstable fatal factor in the retaining wall slope based on the slope characteristics of the retaining wall slope.

[0067] It can be understood that the slope is a natural or artificial slope, which is composed of the top, surface, foot and a certain depth below the slope line, and has a certain height, slope and extension width. The retaining wall slope is a structure that fills the slope roadbed with soil or soil to prevent the fill or soil from deforming and becoming unstable.

[0068] It should be noted that the above-mentioned slope features may include image features, internal structure features, etc. The above-mentioned image features may be obtained based on remote sensing images, drone aerial images, thermal imaging, etc., and the embodiments of the present application do not limit this. By identifying the slope features, it is possible to determine whether there is an unstable fatal factor x in the retaining wall slope. The identification method may be a machine learning method or other methods, and the embodiments of the present application do not limit this.

[0069] It needs to be explained that, in order to evaluate the instability of the retaining wall slope, the embodiment of the present application proposes an instability fatal factor, which may be a factor that plays a decisive role in the instability of the retaining wall slope. Once this factor appears in the retaining wall slope, the safety risk level increases.

[0070] In some implementations of the embodiments of the present application, the above-mentioned instability fatal factors may include cracks at the rear edge of the slope, such as continuously extending open cracks at the rear edge of the slope (such as an opening greater than 0.5m); it may also include longitudinal shear cracks on the slope surface, such as a large number of longitudinal shear cracks visible on the slope surface; it may also include the degree of damage to the slope wall, with open transverse cracks greater than 5m in length on the wall; it may also include the condition of the retaining wall of the slope protection project, such as obvious bulging, collapse or dislocation of the retaining wall in the protection project.

[0071] It should be noted that the instability fatality factor can be planned based on the slope conditions of the retaining wall in actual applications, and the embodiments of the present application do not impose specific restrictions on it.

[0072] In practical applications, if any unstable fatal factor appears, the retaining wall slope can be considered unstable, and the slope instability index SI of the corresponding retaining wall slope can be set to a preset value (specifically, 1.0). That is, in step S20, when the unstable fatal factor exists, the preset value is used as the slope instability index of the retaining wall slope.

[0073] Step S30: when the instability fatal factor does not exist, determining a slope instability index based on the slope characteristics of the retaining wall slope.

[0074] It should be noted that when there is no fatal instability factor in the retaining wall slope, the slope instability index of the retaining wall slope can be determined by the slope characteristics of the retaining wall slope. The slope characteristics of the retaining wall slope may include geometric characteristics, deformation characteristics, damage characteristics, leakage characteristics, etc., which are not limited in the embodiments of the present application.

[0075] Step S40, determining the slope hazard hazard index of the retaining wall slope;

[0076] Step S50: determining the safety risk level of the retaining wall slope based on the slope instability index and the slope disaster hazard index.

[0077] It should be noted that the above slope disaster hazard index can be an indicator for evaluating and quantifying the degree of damage or loss that may be caused by a disaster on the retaining wall slope. By evaluating the safety level of the retaining wall slope through the slope stability index and the slope disaster hazard index, the stability, danger and degree of danger of the retaining wall slope can be comprehensively considered during the assessment process, thereby achieving a more accurate safety level classification.

[0078] In some implementations of the present application, the safety risk assessment of the retaining wall slope can be calculated based on the following formula:

[0079] RS = SI × CS;

[0080] Among them, RS is the slope safety risk assessment score, SI is the slope instability index, and CS is the slope disaster hazard index.

[0081] In some implementations of the embodiments of the present application, the safety risk level of the retaining wall slope can be divided based on the slope safety risk assessment score. Specifically, when RS≥0.3, it can be considered that the slope stability is poor, and the consequences of instability (i.e., loss of stability) are serious, and its risk level can be identified as red (i.e., extremely high risk). When 0.2≤RS<0.3, it can be considered that the slope stability is poor, but the consequences of instability are not serious; or there is a possibility of instability in the slope, and the consequences of instability are serious, and its risk level can be identified as orange (i.e., high risk). When 0.1≤RS<0.2, it can be considered that there is a possibility of instability in the slope, but the consequences of instability are not serious; or the slope stability is good, but once the consequences of damage occur, the consequences are serious, and its risk level can be identified as yellow (i.e., medium risk). When RS<0.1, it can be considered that the slope stability is good, and the consequences of instability are small, and its risk level can be identified as blue (i.e., low risk).

[0082] The embodiment of the present application determines whether there is an unstable fatal factor in the retaining wall slope based on the slope characteristics of the retaining wall slope; when there is an unstable fatal factor, a preset value is used as the slope instability index of the retaining wall slope; when there is no unstable fatal factor, the slope instability index is determined based on the slope characteristics of the retaining wall slope; the slope disaster hazard index of the retaining wall slope is determined; and the safety risk level of the retaining wall slope is determined based on the slope instability index and the slope disaster hazard index. Since the slope instability index and the slope hazard index in the retaining wall slope are determined, a comprehensive assessment of the retaining wall slope is achieved, thereby improving the accuracy of the safety level risk assessment.

[0083] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 3 and Figure 4 , Figure 3 A flow chart of the second embodiment of the method for assessing the safety risk level of a retaining wall slope provided in this application is provided. Figure 4 The schematic diagram of the overall process of retaining wall slope safety risk assessment provided in one implementation of the retaining wall slope safety risk level assessment method of the present application. In the embodiment of the present application, the step of determining the slope instability index based on the slope characteristics of the retaining wall slope includes:

[0084] Step S31, determining the geometric features of the retaining wall slope;

[0085] Step S32, determining the slope deformation and failure characteristics of the retaining wall slope based on the slope deformation degree of the retaining wall slope;

[0086] Step S33, obtaining the slope failure history and slope surface protection and drainage characteristics of the retaining wall slope;

[0087] Step S34, determining the slope seepage characteristics of the retaining wall slope and the retaining wall type characteristics;

[0088] Step S35, obtaining the bottom angle of the retaining wall slope;

[0089] Step S36, determining the slope instability index of the retaining wall slope based on the geometric features, the slope deformation and failure features, the slope failure history, the slope surface protection and drainage features, the leakage features, the retaining wall type features and the slope bottom angle.

[0090] In some implementations of the present application, the slope instability index may be calculated as follows:

[0091] SI=(A+B1+B2+C1+C2+D+E) / 100;

[0092] Among them, A represents the characteristic score corresponding to the geometric characteristics of the retaining wall slope, B1 represents the slope deformation and failure characteristics of the retaining wall slope, B2 represents the characteristic score corresponding to the slope failure history of the retaining wall slope, C1 represents the characteristic score corresponding to the slope surface protection and drainage characteristics, C2 represents the characteristic score corresponding to the slope leakage characteristics, D represents the characteristic score corresponding to the retaining wall type characteristics, and E represents the characteristic score corresponding to the slope bottom angle.

[0093] In some implementations of the embodiments of the present application, the geometric features of the retaining wall slope can be determined by the height-to-thickness ratio. That is, the step of determining the geometric features of the retaining wall slope includes: obtaining the geometric index of the retaining wall slope; determining the effective height of the retaining wall slope based on the geometric index; determining the height-to-thickness ratio of the retaining wall slope based on the effective height of the slope and the width of the retaining wall foundation; and determining the geometric features of the retaining wall slope based on the height-to-thickness ratio.

[0094] It is understood that the geometry of the retaining wall is the determining factor for the overall stability of the retaining wall. The geometric indicators of the retaining wall slope can include: the height of the retaining wall (H w ), retaining wall slope height (H r ), retaining wall slope height (H s), the slope of the side slope above the retaining wall (β), the wall angle (θ), the slope top overload (s), the retaining wall foundation width (B w ) and the weight of soil behind the retaining wall (γ).

[0095] It should be noted that based on the above geometric indicators, the slope characteristic height (H) and slope effective height (H) of the retaining wall slope can be calculated. e ). The calculation method can be as follows:

[0096] H=H s +H w +H r ;

[0097]

[0098] Furthermore, based on the effective height of the slope and the width of the retaining wall foundation, the height-to-thickness ratio (H e / B w ). Based on the height-to-thickness ratio of the retaining wall slope, the characteristic score corresponding to the geometric characteristics of the retaining wall slope can be determined.

[0099] In some implementations of the embodiments of the present application, the characteristic score A corresponding to the geometric morphological characteristics of the retaining wall slope can be determined by referring to the retaining wall geometric morphological characteristic score table shown below:

[0100]

[0101]

[0102] In some implementations of the present application, the slope deformation and failure characteristics of the retaining wall slope can be determined based on the deformation and failure signs of the retaining wall, which can be determined by comprehensive judgment such as the mortar shedding on the wall surface, the shedding of internal masonry materials, the wall crack characteristics, and the displacement characteristics of the wall.

[0103] In some implementations of the embodiments of the present application, the feature score B1 corresponding to the slope deformation and failure feature can be determined based on a feature score query table of the slope deformation and failure feature as shown below:

[0104]

[0105] Among them, the deformation degree of the slope can be determined based on the deformation damage signs of the slope. Specifically, the deformation damage signs corresponding to extremely serious deformation or damage are that most of the wall falls off (the wall falls off ratio is greater than the preset value), the wall displacement exceeds the vertical line drawn from the foot of the wall or the displacement is greater than 75mm, the horizontal continuous crack width of the wall top or the vertical crack width of the wall is greater than 0.6%h (h is the height from the crack width measurement point to the ground line). The deformation damage signs corresponding to severe deformation or damage are that part of the wall falls off, the wall displacement is less than the vertical line drawn from the foot of the slope or the displacement is less than 75mm, and the horizontal continuous crack width of the wall top or the vertical crack width of the wall is within the range of 0.2%h to 0.6%h. The deformation damage signs corresponding to moderate deformation or damage are that a small part of the mortar falls off, the wall is slightly displaced by the naked eye, and the horizontal continuous crack width of the wall top or the vertical crack width of the wall is within the range of 0.1%h to 0.2%h. The deformation and damage signs corresponding to slight deformation or damage are that the entire wall is basically intact, the wall displacement is not visible to the naked eye, and the width of the horizontal continuous cracks on the top of the wall or the width of the vertical cracks in the wall is less than 0.1%h. Specifically, the step of determining the slope deformation and damage characteristics of the retaining wall slope based on the slope deformation degree of the retaining wall slope includes: obtaining the deformation and damage signs of the retaining wall slope; determining the slope deformation degree of the retaining wall slope based on the deformation and damage signs; determining the slope deformation and damage characteristics of the retaining wall slope based on the slope deformation degree.

[0106] In some implementations of the embodiments of the present application, the slope failure history of the retaining wall slope can be determined based on the analysis of historical data and the results of the slope survey. The slope failure conditions may include: overall instability refers to the slope instability affecting the wall and the soil behind the wall; local instability refers to the slope instability affecting part of the wall and the soil; structural instability refers to the soil behind the retaining wall structure being destroyed without deformation. According to the slope failure conditions that occurred in the slope history, the characteristic score B2 corresponding to the slope failure history of the retaining wall slope can be determined. For details, please refer to the characteristic score query table of the slope failure history as shown below:

[0107]

[0108] In some implementations of the embodiments of the present application, in order to determine the characteristic score C1 corresponding to the slope protection and drainage characteristics, a slope protection and drainage characteristic score query table as shown below can be used:

[0109]

[0110] Among them, poor slope protection means that less than 25% of the wall top area has a protective surface; moderate slope protection means that 25% to 75% of the wall top area has a protective surface; good slope protection means that more than 75% of the wall top area has a protective surface; poor slope surface water transfer facilities mean that there is no drainage ditch in the area above the wall top, and surface water gathers above the wall top; moderate slope surface water transfer facilities mean that there are drainage ditches in the area above the wall top, but the number is insufficient; good slope surface water transfer facilities mean that the area above the wall top has complete drainage measures and sufficient drainage.

[0111] In some implementations of the present application, the seepage characteristics of the retaining wall slope can also be considered by considering the seepage, size and slope (drainage) measures on the slope surface. The characteristic score C2 corresponding to the specific slope leakage characteristics can refer to the characteristic score query table of slope leakage characteristics shown below:

[0112]

[0113]

[0114] Severe seepage: refers to seepage at half the wall height or above, with a flow rate of ≥1m 3 / day. General seepage: refers to seepage at half wall height or above, with flow rate <1m 3 / day; or there is seepage below half the wall height, with a flow rate ≥1m 3 / day. No seepage / slight seepage: Seepage is found below half the wall height, with a flow rate of <1m 3 / day; or no seepage signs occur. If conditions permit, the seepage flow rate can be measured by filling a container of known volume V (unit: m 3 ) is used to calculate the daily seepage flow rate Q. If there is no standard container, it can also be estimated by visual inspection.

[0115] In some implementations of the present application, since the masonry materials and masonry methods of the retaining wall determine the strength of the retaining wall, the retaining wall type feature can be used as one of the evaluation indicators. Specifically, the feature score D corresponding to the retaining wall feature can be determined by referring to the feature score query table corresponding to the retaining wall type as shown below:

[0116]

[0117] Among them, Class I retaining wall refers to dry-laid rubble retaining wall (including with horizontal beams and without horizontal beams); Class II retaining wall refers to lime-soil masonry retaining wall, brick retaining wall, decorative masonry or dry-laid rubble stone retaining wall without tie beams; Class III retaining wall refers to decorative masonry or dry-laid rubble stone retaining wall with beams, any masonry wall with concrete beams (except random rubble wall); Class IV retaining wall refers to concrete wall; concrete panel wall.

[0118] In some implementations of the present application, the retaining wall mainly supports the soil behind the wall, but has no effect on the soil in front of the wall. Therefore, the slope instability index of the retaining wall can be comprehensively evaluated in combination with the stability of the soil in front of the retaining wall. Specifically, the influence of the soil in front of the retaining wall on the slope foot can be considered, and the characteristic score E corresponding to the slope bottom angle can be queried based on the slope bottom angle and the retaining wall slope bottom angle characteristic score query table shown below:

[0119]

[0120] Among them, α represents the bottom angle of the retaining wall slope.

[0121] It should be noted that when the slope instability index is determined, the stability level of the retaining wall slope can be graded based on the slope instability index.

[0122] Specifically, when the slope instability index SI < 0.1, the slope danger level can be determined as level one, and the corresponding stability level is stable. At this time, the slope stability is good; when the slope instability index is 0.1≤SI<0.3, the slope danger level can be determined as level two, and the corresponding stability level is relatively stable. At this time, the slope stability is good, and there is a small probability of local soil collapse; when the slope instability index is 0.3≤SI<0.5, the slope danger level can be determined as level three, and the corresponding stability level is basically stable. At this time, the slope stability is good. In general, the possibility of overall instability is small, but there is a high probability of local soil collapse; when the slope instability index is 0.5≤SI<0.7, the slope hazard level can be determined as level four, and the corresponding stability level is understable. At this time, the slope stability is poor, and there is a possibility of overall instability, and soil collapse may occur in multiple areas; when the slope instability index SI≥0.7, the slope hazard level can be determined as level five, and the corresponding stability level is unstable. At this time, the slope stability is poor, and there is a high probability of overall instability.

[0123] The embodiment of the present application determines the geometric features of the retaining wall slope; determines the slope deformation and failure features of the retaining wall slope based on the slope deformation degree of the retaining wall slope; obtains the slope failure history and slope surface protection and drainage features of the retaining wall slope; determines the slope leakage features and retaining wall type features of the retaining wall slope; obtains the slope bottom angle of the retaining wall slope; and determines the slope instability index of the retaining wall slope based on the geometric features, slope deformation and failure features, slope failure history, slope surface protection and drainage features, leakage features, retaining wall type features, and slope bottom angle. Since the slope instability index of the retaining wall slope is determined by multiple parameters, the assessment accuracy of the retaining wall slope is improved.

[0124] Based on the first embodiment and / or the second embodiment of the present application, in the third embodiment of the present application, the same or similar contents as those of the above-mentioned first embodiment and / or the second embodiment can refer to the above introduction, and will not be repeated later. Figure 5 , Figure 5 A flow chart of the third embodiment of the method for evaluating the safety risk level of a retaining wall slope of the present application is provided. In the embodiment of the present application, the step of determining the slope hazard hazard index of the retaining wall slope includes:

[0125] Step S41, determining a score of facilities at the top of the retaining wall slope based on the type of infrastructure at the top of the retaining wall slope, the characteristic height of the slope, and the distance between the facilities and the top of the slope;

[0126] Step S42, determining the foot facility score of the retaining wall slope based on the type of the foot infrastructure of the retaining wall slope, the characteristic height of the slope, the distance between the facility and the foot of the slope, and the terrain characteristics of the slope;

[0127] Step S43, determining the slope disaster-bearing body grade score of the retaining wall slope and the degree of hazard after the retaining wall slope becomes unstable;

[0128] Step S44, determining the score of the group of people affected by the slope of the retaining wall slope;

[0129] Step S45, determining the slope hazard hazard index of the retaining wall slope based on the slope top facility score, the slope foot facility score, the slope hazard-bearing body grade score, the hazard degree and the slope disaster-affected population score.

[0130] In the embodiment of the present application, the slope hazard index CS of the retaining wall slope can be calculated based on the following formula:

[0131]

[0132] Among them, F1 represents the score of facilities at the top of the slope, F2 represents the score of facilities at the foot of the slope, G1 represents the score of the disaster-bearing body grade of the slope, G2 represents the score of the degree of hazard, and I represents the score of the affected population.

[0133] It should be noted that when obtaining the score for slope top facilities, the slope top infrastructure type F can be considered. s , slope characteristic height H0, and the distance between the facility and the top of the slope L1. Specifically, the top facility score can be calculated based on the following formula:

[0134] F1=F s (2H0-L1) / (2H0);

[0135] In one implementation, if the facility is set on a slope, the facility score F1 = F s .

[0136] Among them, the slope top facility type F s The values ​​can be taken based on the following score table of facilities around the slope:

[0137]

[0138]

[0139] It should be noted that when there are multiple facilities around the slope, the score of each facility can be calculated separately and the maximum value can be taken. When the calculated value is less than zero, it is taken as zero.

[0140] In one implementation, the foot of slope facility score can be determined by considering four influencing factors: the type of infrastructure at the foot of the slope Fw, the characteristic height of the slope H0, the distance of the facility to the foot of the slope L2, and the terrain characteristics of the slope Js. The specific calculation method can refer to the formula shown below:

[0141]

[0142] Among them, the slope foot facility type Fw is determined based on the importance of the facility (the specific value can be found in the score table of facilities around the slope), and the slope characteristic height H0 and the distance L1 from the facility to the top of the slope are obtained based on the on-site investigation of the slope. The topographic characteristics Js of the slope comprehensively consider the influence of the slope elevation angle and slope height. The specific value can be found in the slope topographic characteristics table shown below:

[0143]

[0144] In one implementation, the slope hazard-bearing body grade score can be determined based on the slope hazard-bearing body grade. For details, refer to the slope hazard-bearing body grade score table shown below:

[0145]

[0146] It should be noted that the above-mentioned slope disaster-bearing body grades can be divided according to the scale of the slope disaster-bearing body in actual applications, and the embodiments of the present application are not limited to this.

[0147] In one implementation, the impact of slope instability on the hazard-bearing body, that is, the degree of hazard of the slope, can be determined by referring to the following score table of the degree of hazard of the slope to the hazard-bearing body:

[0148]

[0149]

[0150] In one implementation, the degree of threat posed by the slope disaster to the population nearby can be scored, that is, the score of the affected population can be obtained. The degree of threat can take into account two influencing factors: the number of households near the slope and the distance from the foot of the slope. The specific calculation method of the score of the affected population can refer to the following table of scores of the affected population:

[0151]

[0152] The embodiment of the present application obtains the number of households within a preset disaster-affected range (such as 100m, 50m, etc.) of the retaining wall slope, and divides the preset disaster-affected range into four disaster-affected range intervals, namely w<10m, 10m≤w<20m, 20m≤w<50m, and w≥50. According to the number of households in each disaster-affected range interval, the score of the affected population of the retaining wall slope can be determined. That is, the step of determining the score of the affected population of the retaining wall slope includes: obtaining the preset disaster-affected range of the retaining wall slope; dividing the preset disaster-affected range into a number of disaster-affected range intervals; and determining the score of the affected population of the retaining wall slope according to the number of households in each of the disaster-affected range intervals.

[0153] The embodiment of the present application determines the top facility score of the retaining wall slope based on the top infrastructure type of the retaining wall slope, the characteristic height of the slope, and the distance between the facility and the top of the slope; determines the foot facility score of the retaining wall slope based on the foot infrastructure type of the retaining wall slope, the characteristic height of the slope, the distance between the facility and the foot of the slope, and the slope terrain characteristics; determines the slope disaster-bearing body grade score of the retaining wall slope and the degree of harm after the retaining wall slope loses stability; determines the slope disaster-affected population score of the retaining wall slope; and determines the slope disaster hazard index of the retaining wall slope based on the top facility score, the foot facility score, the slope disaster-bearing body grade score, the degree of harm, and the slope disaster-affected population score. Because it collects and analyzes multi-dimensional data of the slope, it integrates multiple aspects of data and improves the accuracy of the safety assessment.

[0154] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the safety risk level assessment method for the retaining wall slope of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0155] This application also provides a device for assessing the safety risk level of retaining wall slopes. Figure 6 , the retaining wall slope safety risk level assessment device comprises:

[0156] A judgment module 10 is used to determine whether there is an unstable fatal factor in the retaining wall slope based on the slope characteristics of the retaining wall slope;

[0157] A stability evaluation module 20, for using a preset value as a slope instability index of the retaining wall slope when the instability fatal factor exists;

[0158] The stability evaluation module 20 is further configured to determine a slope instability index based on the slope characteristics of the retaining wall slope when the instability fatal factor does not exist;

[0159] A hazard management module 30, for determining a slope hazard hazard index of the retaining wall slope;

[0160] The level assessment module 40 is used to determine the safety risk level of the retaining wall slope based on the slope instability index and the slope disaster hazard index.

[0161] The safety risk level assessment device for retaining wall slopes provided by the present application adopts the safety risk level assessment method for retaining wall slopes in the above-mentioned embodiment, which can solve the technical problem that the existing safety risk assessment method for retaining wall slopes cannot reflect the complexity and uncertainty of the stability of retaining wall slopes. Compared with the prior art, the beneficial effects of the safety risk level assessment device for retaining wall slopes provided by the present application are the same as the beneficial effects of the safety risk level assessment method for retaining wall slopes provided by the above-mentioned embodiment, and the other technical features of the safety risk level assessment device for retaining wall slopes are the same as the features disclosed in the above-mentioned embodiment method, which will not be repeated here.

[0162] The present application provides a device for assessing the safety risk level of a retaining wall slope. The device for assessing the safety risk level of a retaining wall slope comprises: at least one processor; and a memory in communication connection with the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method for assessing the safety risk level of a retaining wall slope in the first embodiment above.

[0163] Reference below Figure 7 , which shows a schematic diagram of the structure of a safety risk level assessment device for a retaining wall slope suitable for implementing the embodiment of the present application. The safety risk level assessment device for a retaining wall slope in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 7The safety risk level assessment device for retaining wall slope shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0164] like Figure 7 As shown, the safety risk level assessment device for retaining wall slope may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM) 1004. Various programs and data required for the operation of the safety risk level assessment device for retaining wall slope are also stored in the RAM 1004. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 1009. The communication device 1009 can allow the safety risk level assessment device for retaining wall slopes to communicate wirelessly or wired with other devices to exchange data. Although the figure shows a safety risk level assessment device for retaining wall slopes with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have instead.

[0165] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0166] The safety risk level assessment device for retaining wall slopes provided by the present application adopts the safety risk level assessment method for retaining wall slopes in the above-mentioned embodiment, which can solve the technical problem that the existing safety risk assessment method for retaining wall slopes cannot reflect the complexity and uncertainty of the stability of retaining wall slopes. Compared with the prior art, the beneficial effects of the safety risk level assessment device for retaining wall slopes provided by the present application are the same as the beneficial effects of the safety risk level assessment method for retaining wall slopes provided by the above-mentioned embodiment, and the other technical features of the safety risk level assessment device for retaining wall slopes are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0167] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0168] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0169] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the method for assessing the safety risk level of a retaining wall slope in the above-mentioned embodiment.

[0170] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0171] The computer-readable storage medium may be included in the device for assessing the safety risk level of a retaining wall slope; or may exist independently without being assembled into the device for assessing the safety risk level of a retaining wall slope.

[0172] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the retaining wall slope safety risk level assessment device, the retaining wall slope safety risk level assessment device:

[0173] Determining whether there is an unstable fatal factor in the retaining wall slope based on the slope characteristics of the retaining wall slope;

[0174] When the instability fatal factor exists, a preset value is used as the slope instability index of the retaining wall slope;

[0175] When the instability fatal factor does not exist, determining a slope instability index based on the slope characteristics of the retaining wall slope;

[0176] Determining the slope hazard hazard index of the retaining wall slope;

[0177] The safety risk level of the retaining wall slope is determined based on the slope instability index and the slope disaster hazard index.

[0178] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0179] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0180] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0181] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned retaining wall slope safety risk level assessment method, and can solve the technical problem that the existing retaining wall slope safety risk assessment method cannot reflect the complexity and uncertainty of the retaining wall slope stability. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the retaining wall slope safety risk level assessment method provided by the above-mentioned embodiment, and will not be repeated here.

[0182] The present application also provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of the above-mentioned method for assessing the safety risk level of a retaining wall slope.

[0183] The computer program product provided by the present application can solve the technical problem that the existing retaining wall slope safety risk assessment method cannot reflect the complexity and uncertainty of the retaining wall slope stability. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the retaining wall slope safety risk level assessment method provided by the above embodiment, which will not be elaborated here.

[0184] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for assessing the safety risk level of a retaining wall slope, characterized in that: The method comprises: Determining whether there is an unstable fatal factor in the retaining wall slope based on the slope characteristics of the retaining wall slope; When the instability fatal factor exists, a preset value is used as the slope instability index of the retaining wall slope; When the instability fatal factor does not exist, determining a slope instability index based on the slope characteristics of the retaining wall slope; Determining the slope hazard hazard index of the retaining wall slope; The safety risk level of the retaining wall slope is determined based on the slope instability index and the slope disaster hazard index.

2. The method for assessing the safety risk level of a retaining wall slope according to claim 1, characterized in that: The step of determining the slope instability index based on the slope characteristics of the retaining wall slope comprises: Determining geometric features of the retaining wall slope; Determining the slope deformation and failure characteristics of the retaining wall slope based on the slope deformation degree of the retaining wall slope; Obtaining the slope failure history and slope surface protection and drainage characteristics of the retaining wall slope; Determining the slope seepage characteristics of the retaining wall slope and the retaining wall type characteristics; Obtaining the bottom angle of the retaining wall slope; The slope instability index of the retaining wall slope is determined based on the geometric features, the slope deformation and failure features, the slope failure history, the slope surface protection and drainage features, the leakage features, the retaining wall type features and the slope bottom angle.

3. The method for assessing the safety risk level of a retaining wall slope according to claim 2, characterized in that: The step of determining the geometric features of the retaining wall slope comprises: Obtain geometric indicators of retaining wall slope; Determine the effective height of the retaining wall slope based on the geometric index; Determining the height-to-thickness ratio of the retaining wall slope based on the effective height of the slope and the width of the retaining wall foundation; The geometric features of the retaining wall slope are determined based on the height-to-thickness ratio.

4. The method for assessing the safety risk level of a retaining wall slope according to claim 2, characterized in that: The step of determining the slope deformation failure characteristics of the retaining wall slope based on the slope deformation degree of the retaining wall slope comprises: Obtaining deformation and damage signs of the retaining wall slope; Determining the slope deformation degree of the retaining wall slope based on the deformation and damage signs; The slope deformation and failure characteristics of the retaining wall slope are determined based on the slope deformation degree.

5. The method for assessing the safety risk level of a retaining wall slope according to claim 1, characterized in that: The step of determining the slope hazard hazard index of the retaining wall slope comprises: Determine the facility score of the top of the retaining wall slope based on the type of infrastructure at the top of the retaining wall slope, the characteristic height of the slope, and the distance between the facility and the top of the slope; Determine the foot facility score of the retaining wall slope based on the foot infrastructure type of the retaining wall slope, the characteristic height of the slope, the distance between the facility and the foot of the slope, and the topographic characteristics of the slope; Determine the slope hazard-bearing body grade score of the retaining wall slope and the degree of hazard after the retaining wall slope becomes unstable; determining a slope affected population score for the retaining wall slope; The slope hazard hazard index of the retaining wall slope is determined based on the slope top facility score, the slope foot facility score, the slope disaster-bearing body grade score, the hazard degree and the slope disaster-affected population score.

6. The method for assessing the safety risk level of a retaining wall slope according to claim 5, characterized in that: The step of determining the slope affected population score of the retaining wall slope comprises: Obtaining a preset disaster-affected range of the retaining wall slope; Dividing the preset disaster-affected area into a plurality of disaster-affected area intervals; The score of the slope affected population of the retaining wall slope is determined according to the number of households within each disaster-affected range.

7. A device for assessing the safety risk level of a retaining wall slope, characterized in that: The safety risk level assessment device for the retaining wall slope comprises: A judgment module, used for determining whether there is an unstable fatal factor in the retaining wall slope based on the slope characteristics of the retaining wall slope; A stability evaluation module, for taking a preset value as a slope instability index of the retaining wall slope when the instability fatal factor exists; The stability evaluation module is further used to determine the slope instability index based on the slope characteristics of the retaining wall slope when the instability fatal factor does not exist; A hazard management module, for determining a slope hazard hazard index of the retaining wall slope; A grade assessment module is used to determine the safety risk grade of the retaining wall slope based on the slope instability index and the slope disaster hazard index.

8. A device for assessing the safety risk level of a retaining wall slope, characterized in that: The device comprises: a memory, a processor and a retaining wall slope safety risk level assessment program stored in the memory and executable on the processor, wherein the retaining wall slope safety risk level assessment program is configured to implement the steps of the retaining wall slope safety risk level assessment method as described in any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium stores a retaining wall slope safety risk level assessment program, which, when executed by the processor, implements the steps of the retaining wall slope safety risk level assessment method as described in any one of claims 1 to 6.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the method for assessing the safety risk level of a retaining wall slope according to any one of claims 1 to 6 are implemented.

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